How long do sunflower seeds last?
Unopened, they keep in the cupboard for about 12 months. Once opened, in the cupboard for about 3 months.
This refers to: Shelled sunflower seeds.
Shelf life of sunflower seeds at a glance
| Storage | Unopened | Opened |
|---|---|---|
| Cupboard | 12 months | 3 months |
| Fridge | – | 7 months |
Their high oil content makes opened seeds go rancid; airtight, cool storage extends their life. A bitter or rancid taste means throw them out.
Past its date does not mean spoiled
These are guide values for food stored correctly. A best-before date is not a throw-away date: many products are still fine after it. Check how it looks, smells and tastes. Mould, an unusual smell or a bulging can are reasons to throw it away. A use-by date is different: do not eat the food after it.